Насколько помню, вносить нужно только при замене блока проявки.
При замене самого носителя:
2. Re-install Developer Housing (reverse order of Removal procedure in REP 9.14).
3. Run dC950 ATC Sensor Setup.
4. Reset HFSI Counter (dC135) for the Developer that was replaced:
• 954-830 (Yellow - Y)
• 954-831 (Magenta - M)
• 954-832 (Cyan - C)
• 954-833 (Black - K)